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  4. Pyranine

Pyranine  (Synonyms: 溶劑綠7; HPTS; Solvent Green 7)

目錄號(hào): HY-D0023 純度: ≥98.0%
COA 產(chǎn)品使用指南

Pyranine (HPTS; Solvent Green 7) 是一種 pH 敏感的熒光指示劑。Pyranine 是一類用于 Cu+ 離子的熒光化學(xué)傳感器 (λex=450 nm，λem=510 nm)。

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Pyranine Chemical Structure

Pyranine Chemical Structure

CAS No. : 6358-69-6

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規(guī)格 價(jià)格 是否有貨 數(shù)量
10 mM * 1 mL in DMSO ￥550
In-stock
500 mg ￥500
In-stock
1 g ￥800
In-stock
5 g   詢價(jià)  
10 g   詢價(jià)  

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Other Forms of Pyranine:

MCE 顧客使用本產(chǎn)品發(fā)表的 1 篇科研文獻(xiàn)

  • 生物活性

  • 實(shí)驗(yàn)參考方法

  • 純度 & 產(chǎn)品資料

  • 參考文獻(xiàn)

生物活性

Pyranine (HPTS; Solvent Green 7) is a pH-sensitive fluorescent indicator. Pyranine acts as a class of fluorescent chemosensor for the Cu+ ion(λex=450 nm, λem=510 nm)[1][2][3].

體外研究
(In Vitro)

Pyranine is capable of discriminating ranges of cations from the Cu+ ion, even in competing environment. Pyranine displays a rapid fluorescence response (t1/2=1.66 min) towards the Cu+ ion, and the micromolar detection limit enables the detection of the ion in environmental samples. The observed stoichiometry of complexation between Pyranine and Cu+ is 2:1[1].
The pH-sensitive fluorescent indicator Pyranine is studied to determine its usefulness as probes for the living cornea and anterior chamber. Adequate concentrations are reached in the cornea and anterior chamber after topical administration; measurements can be made by fluorophotometry for many hours. The pH is calculated by measuring the ratio of fluorescent intensity at two excitation wavelengths, I463/I404, a measurement which is dependent on pH but independent of the concentration of the fluorophore and other variables which can alter the intensity. In the rabbit eye, Pyranine in the cornea and anterior chamber is observed to undergo easily measurable changes in fluorescent ratios associated with lid closure and contact lens wear, indicating its sensitivity to mild changes in pH[2].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
分子量

524.39

Formula

C16H7Na3O10S3
CAS 號(hào)
性狀

固體

顏色

Light yellow to yellow

Emission (Em)

510
Excitation (Ex)

450
中文名稱

溶劑綠7
運(yùn)輸條件

Room temperature in continental US; may vary elsewhere.
儲(chǔ)存方式

4°C, sealed storage, away from moisture and light

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)

溶解性數(shù)據(jù)
細(xì)胞實(shí)驗(yàn)： 

H2O 中的溶解度 : 20 mg/mL (38.14 mM; 超聲助溶 (<60°C))

配制儲(chǔ)備液
濃度 溶劑體積 質(zhì)量 1 mg 5 mg 10 mg
1 mM 1.9070 mL 9.5349 mL 19.0698 mL
5 mM 0.3814 mL 1.9070 mL 3.8140 mL
查看完整儲(chǔ)備液配制表

* 請(qǐng)根據(jù)產(chǎn)品在不同溶劑中的溶解度選擇合適的溶劑配制儲(chǔ)備液；一旦配成溶液，請(qǐng)分裝保存，避免反復(fù)凍融造成的產(chǎn)品失效。
儲(chǔ)備液的保存方式和期限：-80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)。-80°C儲(chǔ)存時(shí)，請(qǐng)?jiān)?個(gè)月內(nèi)使用，-20°C儲(chǔ)存時(shí)，請(qǐng)?jiān)?個(gè)月內(nèi)使用。

* 備注：如您選擇水作為儲(chǔ)備液，請(qǐng)稀釋至工作液后，再用 0.22 μm 的濾膜過(guò)濾除菌后使用。

  • 摩爾計(jì)算器

  • 稀釋計(jì)算器

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

質(zhì)量
=
濃度
×
體積
×
分子量 *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

濃度 (start)

C1

×
體積 (start)

V1

=
濃度 (final)

C2

×
體積 (final)

V2

動(dòng)物實(shí)驗(yàn)：

以下溶解方案，請(qǐng)直接配制工作液。建議現(xiàn)用現(xiàn)配，在短期內(nèi)盡快用完。 以下溶劑前顯示的百分比是指該溶劑在您配制終溶液中的體積占比； 如在配制過(guò)程中出現(xiàn)沉淀、析出現(xiàn)象，可以通過(guò)加熱和/或超聲的方式助溶。

  • 方案 一

    請(qǐng)依序添加每種溶劑： PBS

    Solubility: 25 mg/mL (47.67 mM); 澄清溶液; 超聲加熱助溶

動(dòng)物溶解方案計(jì)算器
請(qǐng)輸入動(dòng)物實(shí)驗(yàn)的基本信息：

給藥劑量

mg/kg

動(dòng)物的平均體重

g

每只動(dòng)物的給藥體積

μL

動(dòng)物數(shù)量

只
由于實(shí)驗(yàn)過(guò)程有損耗，建議您多配一只動(dòng)物的量
計(jì)算結(jié)果
工作液所需濃度 : mg/mL
該產(chǎn)品水溶性佳，請(qǐng)具體參考實(shí)測(cè) 水 / PBS / Saline 中的溶解度數(shù)據(jù)。
您所需的儲(chǔ)備液濃度超過(guò)該產(chǎn)品的實(shí)測(cè)溶解度，如有需要，請(qǐng)與 MCE 中國(guó)技術(shù)支持聯(lián)系。
純度 & 產(chǎn)品資料

純度: ≥98.0%

參考文獻(xiàn)
Cell Assay
[3]

PAAm-κC composite gels are prepared by free-radical copolymerization using 0.71 g of AAm, 0.01 g of BIS (N, N’-methylenebisacrylamide), 0.008 g of APS (ammonium persulfate) and 2 μl of TEMED (tetramethylethylenediamine) are dissolved in 5 mL of distilled water (pH 6.5) by heating. The heated mixture solution is held at 80°C. Then different amounts of κ-carrageenan (0.5, 1, 1.5, 2, 2.5 and 3 (w/v) % κC) are added. Pyranine (Py) is used in the PAAm–κC composites as a fluorescence probe, which is a derivative of pyrene possessing three SO3- groups, which can form bonds with positive charges on the gel. Pyranine (Py) concentration is kept constant at 4×10-4 M, for all experiments. The solution is stirred (200 rpm) for 15 min to achieve a homogenous sample solution. All samples are deoxygenated by bubbling nitrogen for 10 min just before the polymerization process. The drying and swelling experiments of disc-shaped PAAm–κC composite gels prepared are performed in air and in water, respectively, at various temperatures (30, 40, 50, and 60°C). A model LS-50 spectrometer equipped with a temperature controller is used for fluorescence intensity measurements, which are made at a 90° position and spectral bandwidths are kept at 5 nm. Disc-shaped gel samples are placed on the wall of a 1-cm path-length square quartz cell filled with air and/or water for the drying and swelling experiments[3].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
參考文獻(xiàn)

完整儲(chǔ)備液配制表

* 請(qǐng)根據(jù)產(chǎn)品在不同溶劑中的溶解度選擇合適的溶劑配制儲(chǔ)備液；一旦配成溶液，請(qǐng)分裝保存，避免反復(fù)凍融造成的產(chǎn)品失效。
儲(chǔ)備液的保存方式和期限：-80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)。-80°C儲(chǔ)存時(shí)，請(qǐng)?jiān)?個(gè)月內(nèi)使用，-20°C儲(chǔ)存時(shí)，請(qǐng)?jiān)?個(gè)月內(nèi)使用。

可選溶劑 濃度 溶劑體積 質(zhì)量 1 mg 5 mg 10 mg 25 mg
H2O 1 mM 1.9070 mL 9.5349 mL 19.0698 mL 47.6744 mL
5 mM 0.3814 mL 1.9070 mL 3.8140 mL 9.5349 mL
10 mM 0.1907 mL 0.9535 mL 1.9070 mL 4.7674 mL
15 mM 0.1271 mL 0.6357 mL 1.2713 mL 3.1783 mL
20 mM 0.0953 mL 0.4767 mL 0.9535 mL 2.3837 mL
25 mM 0.0763 mL 0.3814 mL 0.7628 mL 1.9070 mL
30 mM 0.0636 mL 0.3178 mL 0.6357 mL 1.5891 mL

* 備注：如您選擇水作為儲(chǔ)備液，請(qǐng)稀釋至工作液后，再用 0.22 μm 的濾膜過(guò)濾除菌后使用。

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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產(chǎn)品名稱：
Pyranine
目錄號(hào)：
HY-D0023
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